购买太阳能热水器时，有哪些技术指标可供参考？
2023-09-12
我们在购买太阳能热水器的时候，可以参考一些技术指标来判断产品质量和适用范围，下面太阳能配件厂家就给我们总结了一些购买太阳能热水器时可供我们参考的技术指标，希望对大家有所帮助！
When we buy solar water heaters, we can refer to some technical indicators to judge the product quality and scope of application. The following manufacturers of solar energy accessories summarize some technical indicators for us to refer to when buying solar water heaters, hoping to be helpful to you all.
1.注意真空管之间的管间距，一般两管的中心距在80mm左右为宜。
1. Attention should be paid to the tube spacing between the vacuum tubes. Generally, the center distance between the two tubes is about 80 mm.
2.注意产品的设计是否能充分利用到真空管的吸热面，真空管能否大程度上受光。
2. Pay attention to whether the product design can make full use of the heat absorbing surface of the vacuum tube and whether the vacuum tube can be illuminated to the greatest extent.
3.细观察真空管内玻璃管上的涂层，这层涂层叫太阳能选择性吸收涂层，质量好的涂层颜色均匀，膜层无划痕、无起皮或脱落现象，玻璃上也没有结石或节瘤现象，支撑内玻璃管的支撑件放置端正、不松动。
3. Look carefully at the coating on the glass tube in the vacuum tube. This coating is called the solar selective absorption coating. The coating with good quality is uniform in color. There are no scratches, peeling or shedding on the film. There are no stones or nodules on the glass. The supporting parts of the inner glass tube are positioned correctly and not loosened.
4.热性能指标中，“平均日效率”越高越好，“平均热损系数”越低越好。
4. Among the thermal performance indicators, the higher the average daily efficiency, the better the average thermal loss coefficient.
5.检查水箱保温层厚度。平板保温层厚度应≥50mm，以聚胺脂整体发泡保温好。聚胺脂发泡呈淡黄色，有点象海棉，发泡体有较均匀的细孔，用手挤压有一定的弹性，但保温层太软则说明其密度较小，不利于保温。
5. Check the thickness of insulation layer of water tank. The thickness of the insulation layer should be more than 50 mm, and the polyurethane foaming insulation is the best. Polyurethane foam is light yellow, a little like sponge, foam body has more uniform fine holes, hand extrusion has a certain degree of elasticity, but the insulation layer is too soft, indicating that its density is small, not conducive to heat preservation.
6.一般来说在冬天和无阳光的天气，需要配合电加热装置来使用，因此还应该选择具有电气安全设计的产品。
6. Generally speaking, in winter and sunless weather, it is necessary to cooperate with electric heating device to use, so we should also choose products with electrical safety design.
7.家用太阳能热水器的支架设计应合理，应有足够的强度和刚度才能确保有足够的承重能力。这一点尤其重要，很多不合格厂家的太阳能热水器由于在抗风性设计和产品质量上存在一些问题，容易造成吹落、塌架、真空管破碎等较为严重的损失。
7. The bracket design of domestic solar water heater should be reasonable, and enough strength and stiffness should be required to ensure adequate load-bearing capacity. This is particularly important. Many unqualified solar water heaters have some problems in wind resistance design and product quality, which can easily cause serious losses such as blow-down, collapse, vacuum tube breakage and so on.
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Thank you for your reading and watching. The wonderful content of this article comes from: solar accessories manufacturers, we will continue to show you more wonderful content. For more details, please click: http://www.jnyppj.com.
